Photo by Melody

PlantFiles: Tom Thumb Cactus
Parodia mammulosa

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Parodia (par-ROH-dee-uh) (Info)
Species: mammulosa (mam-uh-LO-sa) (Info)

Synonym:Parodia mammulosa subsp. mammulosa
Synonym:Echinocactus mammulosus
Synonym:Malacocarpus mammulosus
Synonym:Notocactus mammulosus
Synonym:Ritterocactus mammulosus

Cactus and Succulents

under 6 in. (15 cm)

3-6 in. (7-15 cm)
6-9 in. (15-22 cm)

USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Sun to Partial Shade
Light Shade

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Pale Pink
Gold (Yellow-Orange)
Bright Yellow

Bloom Time:
Mid Spring
Late Spring/Early Summer

Unknown - Tell us

Other details:
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Suitable for growing in containers

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
From seed; direct sow after last frost

Seed Collecting:
Allow unblemished fruit to ripen; clean and dry seeds
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds

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No positives
1 neutral
No negatives

Gardeners' Notes:

Neutral Xenomorf On Sep 27, 2005, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

More synonyms are Echinocactus hypocrateriformis, Notocactus hypocrateriformis, Echinocactus pampeanus, Notocactus pampeanus, Echinocactus floricomus, Notocactus floricomus, Notocactus roseoluteus, Notocactus mueller-moelleri, Notocactus cristatoides, Notocactus paulus, Notocactus macambarensis, Notocactus ritteranus, Notocactus mammulosus var. pampeanus, Notocactus submammulosus var. pampeanus & Notocactus macambarensis.


This plant has been said to grow in the following regions:

Corona, California
Hesperia, California
Silverado, California

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